[867] Transpose Matrix

class Solution {
public:
    vector<vector<int>> transpose(vector<vector<int>>& A) {
        vector<vector<int>> B(A[0].size(), vector<int>(A.size()));
        for(int i=0; i<A.size(); i++){
            for(int j=0; j<A[i].size();j++)
                B[j][i] = A[i][j];
        }
        return B;
    }
};

My Solution

开一个数组，存进去。

Best Solution

Attention